公开(公告)号：US20250125706A1

公开(公告)日：2025-04-17

申请号：US18884102

申请日：2024-09-12

Applicant: CYNTEC CO., LTD.

Inventor： Hsuan-Ju Chen

IPC: H02M1/00 ,  H02M7/217

Abstract: A power conversion circuit is provided, which includes a control circuit. The control circuit includes a reference signal generation circuit, a comparator, an on-time control circuit and a driving circuit. The reference signal generation circuit is configured to compensate for a first reference voltage and generate an adjusted reference voltage. The reference signal generation circuit includes an operational amplifier circuit, a compensation capacitor and a compensation branch circuit. The operational amplifier circuit is configured to receive the first reference voltage and accordingly generate the adjusted reference voltage. The comparator is configured to output a comparison signal according to a signal related to the first output voltage and a signal related to the adjusted reference voltage. The on-time control circuit is configured to generate an on-time control signal according to the comparison signal. The driving circuit is configured to generate a driving control signal according to the on-time control signal.